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We consider the problems of user selection and power control in wireless interference networks, comprising multiple access points (APs) communicating with a group of user equipment devices (UEs) over a shared wireless medium. To achieve a…

Signal Processing · Electrical Eng. & Systems 2023-03-16 Navid NaderiAlizadeh , Mark Eisen , Alejandro Ribeiro

Graph neural networks (GNNs) have recently achieved state-of-the-art performance in many graph-based applications. Despite the high expressive power, they typically need to perform an expensive recursive neighborhood expansion in multiple…

Machine Learning · Computer Science 2022-06-10 Wentao Zhang , Ziqi Yin , Zeang Sheng , Wen Ouyang , Xiaosen Li , Yangyu Tao , Zhi Yang , Bin Cui

Proximal Policy Optimization (PPO) dominates reinforcement learning and LLM alignment but relies on a "hard clipping" mechanism that discards valuable gradients. Conversely, unconstrained methods like SPO expose the optimization to…

Artificial Intelligence · Computer Science 2026-05-07 Yiheng Zhang , Yiming Wang , Kaiyan Zhao , Zhenglin Wan , Jiayu Chen , Leong Hou U

In order to achieve high data rate and ubiquitous connectivity in future wireless networks, a key task is to efficiently manage the radio resource by judicious beamforming and power allocation. Unfortunately, the iterative nature of the…

Networking and Internet Architecture · Computer Science 2023-01-03 Yunqi Wang , Yang Li , Qingjiang Shi , Yik-Chung Wu

Problem Definition: Managing inpatient flow in large hospital systems is challenging due to the complexity of assigning randomly arriving patients -- either waiting for primary units or being overflowed to alternative units. Current…

Optimization and Control · Mathematics 2026-05-08 Jingjing Sun , Jim Dai , Pengyi Shi

Network slicing provides introduces customized and agile network deployment for managing different service types for various verticals under the same infrastructure. To cater to the dynamic service requirements of these verticals and meet…

Networking and Internet Architecture · Computer Science 2022-02-07 Joseph Thaliath , Solmaz Niknam , Sukhdeep Singh , Rahul Banerji , Navrati Saxena , Harpreet S. Dhillon , Jeffrey H. Reed , Ali Kashif Bashir , Avinash Bhat , Abhishek Roy

In the rapidly evolving landscape of 5G and beyond, cloud-native Open Radio Access Networks (O-RAN) present a paradigm shift towards intelligent, flexible, and sustainable network operations. This study addresses the intricate challenge of…

Signal Processing · Electrical Eng. & Systems 2024-07-17 Rana M. Sohaib , Syed Tariq Shah , Oluwakayode Onireti , Yusuf Sambo , M. A. Imran

Proximal policy optimization (PPO) is one of the most successful deep reinforcement-learning methods, achieving state-of-the-art performance across a wide range of challenging tasks. However, its optimization behavior is still far from…

Machine Learning · Computer Science 2020-01-15 Yuhui Wang , Hao He , Chao Wen , Xiaoyang Tan

As wireless networks grow to support more complex applications, the Open Radio Access Network (O-RAN) architecture, with its smart RAN Intelligent Controller (RIC) modules, becomes a crucial solution for real-time network data collection,…

Networking and Internet Architecture · Computer Science 2024-10-08 Fatemeh Lotfi , Fatemeh Afghah

Next-generation wireless cellular networks are expected to provide unparalleled Quality-of-Service (QoS) for emerging wireless applications, necessitating strict performance guarantees, e.g., in terms of link-level data rates. A critical…

Artificial Intelligence · Computer Science 2025-04-29 Omid Semiari , Hosein Nikopour , Shilpa Talwar

Direct Preference Optimization (DPO) aligns language models using pairwise preference comparisons, offering a simple and effective alternative to Reinforcement Learning (RL) from human feedback. However, in many practical settings, training…

Machine Learning · Computer Science 2026-05-11 Ning Liu , Chuanneng Sun , Kristina Klinkner , Shervin Malmasi

The flexibility introduced with the Open Radio Access Network (O-RAN) architecture allows us to think beyond static configurations in all parts of the network. This paper addresses the issue related to predicting the power consumption of…

Machine Learning · Computer Science 2023-01-18 Merim Dzaferagic , Jose A. Ayala-Romero , Marco Ruffini

This paper addresses the critical challenge posed by the increasing energy consumption in mobile networks, particularly with the advent of Sixth Generation (6G) technologies. We propose an adaptive network management framework that…

Networking and Internet Architecture · Computer Science 2025-03-19 Gustavo Z. Bruno , Gabriel M. Almeida , Aloizio Da Silva , Luiz A. DaSilva , Joao F. Santos , Alexandre Huff , Kleber V. Cardoso , Cristiano B. Both

Intelligent techniques are urged to achieve automatic allocation of the computing resource in Open Radio Access Network (O-RAN), to save computing resource, increase utilization rate of them and decrease the delay. However, the existing…

Neural and Evolutionary Computing · Computer Science 2022-01-13 Gan Ruan , Leandro L. Minku , Zhao Xu , Xin Yao

Connected Vehicles (CVs) can leverage the unique features of 5G and future 6G/NextG networks to enhance Intelligent Transportation System (ITS) services. However, even with advancements in cellular network generations, CV applications may…

Networking and Internet Architecture · Computer Science 2024-12-31 Maria Barbosa , Kelvin Dias

The fifth-generation of mobile radio technologies is expected to be agile, flexible, and scalable while provisioning ultra-reliable and low-latency communication (uRLLC), enhanced mobile broadband (eMBB), and massive machine type…

Networking and Internet Architecture · Computer Science 2022-05-10 Sourav Mondal , Marco Ruffini

5G and beyond cellular networks (NextG) will support the continuous execution of resource-expensive edge-assisted deep learning (DL) tasks. To this end, Radio Access Network (RAN) resources will need to be carefully "sliced" to satisfy…

Networking and Internet Architecture · Computer Science 2024-07-09 Corrado Puligheddu , Jonathan Ashdown , Carla Fabiana Chiasserini , Francesco Restuccia

Fast and reliable optimal power flow (OPF) approximation is essential for reliable smart-grid operation, yet many learning-based surrogates either flatten the native heterogeneous structure of power networks, target a limited set of grid…

Machine Learning · Computer Science 2026-05-25 Massimiliano Lupo Pasini , Yijiang Li , Kibaek Kim , Teja Kuruganti

Despite recommendations to deploy real-time Open Radio Access Network (O-RAN) applications (dApps) in containerized environments, existing approaches predominantly rely on bare-metal servers. Moreover, current dApp deployments offer limited…

Networking and Internet Architecture · Computer Science 2026-05-08 Conrado Boeira , Eduardo Baena , Andrea Lacava , Tommaso Melodia , Dimitrios Koutsonikolas , Israat Haque

In recent years, the radio access network (RAN) domain has witnessed a sea change with increasing levels of virtualization and softwarization driven by emerging paradigms such as the Open RAN (O-RAN) movement. However, the fundamental…

Networking and Internet Architecture · Computer Science 2024-07-04 Ahan Kak , Van-Quan Pham , Huu-Trung Thieu , Nakjung Choi